David, I have stereo subs driven by some mean 150W Kenwood monoblocks. It's not a low watt system by any standard.
Aow watt system is like the one Lak has, with two little 5W SET monoblocks driving a pair of Cain & Cain Abbys. The sound is really clean, articulate and extremely detailed but it lacks the impact if the music demads so. Small scale acoustic music is extremely realistic, nonetheless. The best I've heard to date...